The Missouri Supreme Court will hear appeals Wednesday after a jury ordered Mercy Clinic Springfield to pay $28.9 million to a woman with a rare disease in 2017.

Emilee Williams has Wilson's disease, a disorder that causes copper to accumulate in a person's liver, brain and other vital organs.

Her lawsuit, filed in 2015, claimed Mercy failed to diagnose her disease in a timely fashion. As her disease went untreated, it became more severe to the point that Williams must be fed through a straw, the lawsuit says.

The 2017 trial stretched more than a week and ended with the jury ordering Mercy to pay $28.9 million.

According to court filings, Mercy wants a new trial, while Williams is challenging how millions of dollars will be paid to her.

Those issues are now up to the Missouri Supreme Court, which will hear the case at 9:30 a.m. Wednesday.

Among Mercy's claims is that instructions given to the jury were problematic.

Williams's appeal challenges the constitutionality of Missouri's periodic payment statute, which requires some future medical damages to be paid out in installments.

Of the $28.9 million judgment, $21 million was for future medical damages.

There was also $3.2 million for future economic damages, excluding future medical damages, and $3.2 million for future non-economic damages.

About $500,000 was ordered for past economic damages, including past medical damages, and another $1 million was ordered for past non-economic damages.

Williams — who was born in 1992, according to court records — originally sued Mercy Clinic Springfield Communities and one of its employees, Dr. Elene Pilapil, in Greene County Circuit Court. Pilapil, who specializes in internal medicine, was later dismissed from the suit.

According to Williams's lawsuit, she was in school pursuing a doctorate degree in physical therapy when, in December 2012, she went to see Pilapil to report experiencing fatigue, tremors, panic attacks, insomnia and other issues.

Williams and her mother, who attended the exam, insisted that Williams receive an MRI and neurological workup, according to the lawsuit.

Pilapil, however, declined to do so and stated that Williams's problems were related to anxiety and depression, according to the lawsuit. Pilapil adjusted Williams's use of medication she was taking for those conditions, the lawsuit said.

For the next five months, according to the lawsuit, Williams and her mother "repeatedly told Pilapil about her ongoing issues to no avail."

In May 2013, and then again the next month, Williams returned to Pilapil and reported that her condition had deteriorated, with issues such as acting drunk, falling due to balance problems and difficulty with handwriting due to tremors, according to the lawsuit. Both times, Williams and her mother requested neurological testing.

In August 2013, according to the lawsuit, "in response to continued pleas from Emilee and her mother," Pilapil ordered an MRI of Williams's brain. The MRI showed severe damage to Williams's basal ganglia, caused by Wilson's disease, according to the lawsuit.